Hi, I'm Eric, Evertop's creator. The screen has a refresh rate of about 350ms, or almost 3 times per second. Of course the device is smart enough to not refresh the screen unless there's a change in displayed content, so it's not like it's actually always refreshing 3 times per second. I've been using the same screen for probably an average of 1-2 hours per day for a little over two years, and can see little or no difference in the clarity of the text and graphics as compared to a brand new screen.